msm: ipa set destination pipe index to cons

while configuring ipa endpoint to dma mode, check if dst
pipe index is cons or not, if not set it to 2

Change-Id: Ie936e9bfdc291d5c296654a6cd5cf780970d075e
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>
Acked-by: Sunil Paidimarri <hisunil@qti.qualcomm.com>
Signed-off-by: Deven Patel <cdevenp@codeaurora.org>